kernel/drivers/gpu/drm/nouveau/nouveau_drm.c

   1 /*
   2  * Copyright 2012 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Ben Skeggs
  23  */
  24
  25 #include <linux/console.h>
  26 #include <linux/delay.h>
  27 #include <linux/module.h>
  28 #include <linux/pci.h>
  29 #include <linux/pm_runtime.h>
  30 #include <linux/vga_switcheroo.h>
  31
  32 #include "drmP.h"
  33 #include "drm_crtc_helper.h"
  34
  35 #include <core/gpuobj.h>
  36 #include <core/option.h>
  37 #include <core/pci.h>
  38 #include <core/tegra.h>
  39
  40 #include "nouveau_drm.h"
  41 #include "nouveau_dma.h"
  42 #include "nouveau_ttm.h"
  43 #include "nouveau_gem.h"
  44 #include "nouveau_vga.h"
  45 #include "nouveau_sysfs.h"
  46 #include "nouveau_hwmon.h"
  47 #include "nouveau_acpi.h"
  48 #include "nouveau_bios.h"
  49 #include "nouveau_ioctl.h"
  50 #include "nouveau_abi16.h"
  51 #include "nouveau_fbcon.h"
  52 #include "nouveau_fence.h"
  53 #include "nouveau_debugfs.h"
  54 #include "nouveau_usif.h"
  55 #include "nouveau_connector.h"
  56 #include "nouveau_platform.h"
  57
  58 MODULE_PARM_DESC(config, "option string to pass to driver core");
  59 static char *nouveau_config;
  60 module_param_named(config, nouveau_config, charp, 0400);
  61
  62 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
  63 static char *nouveau_debug;
  64 module_param_named(debug, nouveau_debug, charp, 0400);
  65
  66 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
  67 static int nouveau_noaccel = 0;
  68 module_param_named(noaccel, nouveau_noaccel, int, 0400);
  69
  70 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
  71                           "0 = disabled, 1 = enabled, 2 = headless)");
  72 int nouveau_modeset = -1;
  73 module_param_named(modeset, nouveau_modeset, int, 0400);
  74
  75 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
  76 int nouveau_runtime_pm = -1;
  77 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
  78
  79 static struct drm_driver driver_stub;
  80 static struct drm_driver driver_pci;
  81 static struct drm_driver driver_platform;
  82
  83 static u64
  84 nouveau_pci_name(struct pci_dev *pdev)
  85 {
  86         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
  87         name |= pdev->bus->number << 16;
  88         name |= PCI_SLOT(pdev->devfn) << 8;
  89         return name | PCI_FUNC(pdev->devfn);
  90 }
  91
  92 static u64
  93 nouveau_platform_name(struct platform_device *platformdev)
  94 {
  95         return platformdev->id;
  96 }
  97
  98 static u64
  99 nouveau_name(struct drm_device *dev)
 100 {
 101         if (dev->pdev)
 102                 return nouveau_pci_name(dev->pdev);
 103         else
 104                 return nouveau_platform_name(dev->platformdev);
 105 }
 106
 107 static int
 108 nouveau_cli_create(struct drm_device *dev, const char *sname,
 109                    int size, void **pcli)
 110 {
 111         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
 112         int ret;
 113         if (cli) {
 114                 snprintf(cli->name, sizeof(cli->name), "%s", sname);
 115                 cli->dev = dev;
 116
 117                 ret = nvif_client_init(NULL, cli->name, nouveau_name(dev),
 118                                        nouveau_config, nouveau_debug,
 119                                        &cli->base);
 120                 if (ret == 0) {
 121                         mutex_init(&cli->mutex);
 122                         usif_client_init(cli);
 123                 }
 124                 return ret;
 125         }
 126         return -ENOMEM;
 127 }
 128
 129 static void
 130 nouveau_cli_destroy(struct nouveau_cli *cli)
 131 {
 132         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
 133         nvif_client_fini(&cli->base);
 134         usif_client_fini(cli);
 135         kfree(cli);
 136 }
 137
 138 static void
 139 nouveau_accel_fini(struct nouveau_drm *drm)
 140 {
 141         nouveau_channel_idle(drm->channel);
 142         nvif_object_fini(&drm->ntfy);
 143         nvkm_gpuobj_del(&drm->notify);
 144         nvif_notify_fini(&drm->flip);
 145         nvif_object_fini(&drm->nvsw);
 146         nouveau_channel_del(&drm->channel);
 147
 148         nouveau_channel_idle(drm->cechan);
 149         nvif_object_fini(&drm->ttm.copy);
 150         nouveau_channel_del(&drm->cechan);
 151
 152         if (drm->fence)
 153                 nouveau_fence(drm)->dtor(drm);
 154 }
 155
 156 static void
 157 nouveau_accel_init(struct nouveau_drm *drm)
 158 {
 159         struct nvif_device *device = &drm->device;
 160         struct nvif_sclass *sclass;
 161         u32 arg0, arg1;
 162         int ret, i, n;
 163
 164         if (nouveau_noaccel)
 165                 return;
 166
 167         /* initialise synchronisation routines */
 168         /*XXX: this is crap, but the fence/channel stuff is a little
 169          *     backwards in some places.  this will be fixed.
 170          */
 171         ret = n = nvif_object_sclass_get(&device->object, &sclass);
 172         if (ret < 0)
 173                 return;
 174
 175         for (ret = -ENOSYS, i = 0; i < n; i++) {
 176                 switch (sclass[i].oclass) {
 177                 case NV03_CHANNEL_DMA:
 178                         ret = nv04_fence_create(drm);
 179                         break;
 180                 case NV10_CHANNEL_DMA:
 181                         ret = nv10_fence_create(drm);
 182                         break;
 183                 case NV17_CHANNEL_DMA:
 184                 case NV40_CHANNEL_DMA:
 185                         ret = nv17_fence_create(drm);
 186                         break;
 187                 case NV50_CHANNEL_GPFIFO:
 188                         ret = nv50_fence_create(drm);
 189                         break;
 190                 case G82_CHANNEL_GPFIFO:
 191                         ret = nv84_fence_create(drm);
 192                         break;
 193                 case FERMI_CHANNEL_GPFIFO:
 194                 case KEPLER_CHANNEL_GPFIFO_A:
 195                 case MAXWELL_CHANNEL_GPFIFO_A:
 196                         ret = nvc0_fence_create(drm);
 197                         break;
 198                 default:
 199                         break;
 200                 }
 201         }
 202
 203         nvif_object_sclass_put(&sclass);
 204         if (ret) {
 205                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
 206                 nouveau_accel_fini(drm);
 207                 return;
 208         }
 209
 210         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
 211                 ret = nouveau_channel_new(drm, &drm->device,
 212                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
 213                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
 214                                           0, &drm->cechan);
 215                 if (ret)
 216                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 217
 218                 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
 219                 arg1 = 1;
 220         } else
 221         if (device->info.chipset >= 0xa3 &&
 222             device->info.chipset != 0xaa &&
 223             device->info.chipset != 0xac) {
 224                 ret = nouveau_channel_new(drm, &drm->device,
 225                                           NvDmaFB, NvDmaTT, &drm->cechan);
 226                 if (ret)
 227                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
 228
 229                 arg0 = NvDmaFB;
 230                 arg1 = NvDmaTT;
 231         } else {
 232                 arg0 = NvDmaFB;
 233                 arg1 = NvDmaTT;
 234         }
 235
 236         ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel);
 237         if (ret) {
 238                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
 239                 nouveau_accel_fini(drm);
 240                 return;
 241         }
 242
 243         ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
 244                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
 245         if (ret == 0) {
 246                 ret = RING_SPACE(drm->channel, 2);
 247                 if (ret == 0) {
 248                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 249                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
 250                                 OUT_RING  (drm->channel, NVDRM_NVSW);
 251                         } else
 252                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
 253                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
 254                                 OUT_RING  (drm->channel, 0x001f0000);
 255                         }
 256                 }
 257
 258                 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
 259                                        false, NVSW_NTFY_UEVENT, NULL, 0, 0,
 260                                        &drm->flip);
 261                 if (ret == 0)
 262                         ret = nvif_notify_get(&drm->flip);
 263                 if (ret) {
 264                         nouveau_accel_fini(drm);
 265                         return;
 266                 }
 267         }
 268
 269         if (ret) {
 270                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
 271                 nouveau_accel_fini(drm);
 272                 return;
 273         }
 274
 275         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
 276                 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
 277                                       NULL, &drm->notify);
 278                 if (ret) {
 279                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
 280                         nouveau_accel_fini(drm);
 281                         return;
 282                 }
 283
 284                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
 285                                        NV_DMA_IN_MEMORY,
 286                                        &(struct nv_dma_v0) {
 287                                                 .target = NV_DMA_V0_TARGET_VRAM,
 288                                                 .access = NV_DMA_V0_ACCESS_RDWR,
 289                                                 .start = drm->notify->addr,
 290                                                 .limit = drm->notify->addr + 31
 291                                        }, sizeof(struct nv_dma_v0),
 292                                        &drm->ntfy);
 293                 if (ret) {
 294                         nouveau_accel_fini(drm);
 295                         return;
 296                 }
 297         }
 298
 299
 300         nouveau_bo_move_init(drm);
 301 }
 302
 303 static int nouveau_drm_probe(struct pci_dev *pdev,
 304                              const struct pci_device_id *pent)
 305 {
 306         struct nvkm_device *device;
 307         struct apertures_struct *aper;
 308         bool boot = false;
 309         int ret;
 310
 311         /* We need to check that the chipset is supported before booting
 312          * fbdev off the hardware, as there's no way to put it back.
 313          */
 314         ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
 315         if (ret)
 316                 return ret;
 317
 318         nvkm_device_del(&device);
 319
 320         /* Remove conflicting drivers (vesafb, efifb etc). */
 321         aper = alloc_apertures(3);
 322         if (!aper)
 323                 return -ENOMEM;
 324
 325         aper->ranges[0].base = pci_resource_start(pdev, 1);
 326         aper->ranges[0].size = pci_resource_len(pdev, 1);
 327         aper->count = 1;
 328
 329         if (pci_resource_len(pdev, 2)) {
 330                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
 331                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
 332                 aper->count++;
 333         }
 334
 335         if (pci_resource_len(pdev, 3)) {
 336                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
 337                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
 338                 aper->count++;
 339         }
 340
 341 #ifdef CONFIG_X86
 342         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
 343 #endif
 344         if (nouveau_modeset != 2)
 345                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 346         kfree(aper);
 347
 348         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
 349                                   true, true, ~0ULL, &device);
 350         if (ret)
 351                 return ret;
 352
 353         pci_set_master(pdev);
 354
 355         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
 356         if (ret) {
 357                 nvkm_device_del(&device);
 358                 return ret;
 359         }
 360
 361         return 0;
 362 }
 363
 364 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
 365
 366 static void
 367 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
 368 {
 369         struct pci_dev *pdev = drm->dev->pdev;
 370
 371         if (!pdev) {
 372                 DRM_INFO("not a PCI device; no HDMI\n");
 373                 drm->hdmi_device = NULL;
 374                 return;
 375         }
 376
 377         /* subfunction one is a hdmi audio device? */
 378         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
 379                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 380
 381         if (!drm->hdmi_device) {
 382                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
 383                 return;
 384         }
 385
 386         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
 387                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
 388                 pci_dev_put(drm->hdmi_device);
 389                 drm->hdmi_device = NULL;
 390                 return;
 391         }
 392 }
 393
 394 static int
 395 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
 396 {
 397         struct nouveau_drm *drm;
 398         int ret;
 399
 400         ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
 401         if (ret)
 402                 return ret;
 403
 404         dev->dev_private = drm;
 405         drm->dev = dev;
 406         nvxx_client(&drm->client.base)->debug =
 407                 nvkm_dbgopt(nouveau_debug, "DRM");
 408
 409         INIT_LIST_HEAD(&drm->clients);
 410         spin_lock_init(&drm->tile.lock);
 411
 412         nouveau_get_hdmi_dev(drm);
 413
 414         ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE,
 415                                &(struct nv_device_v0) {
 416                                         .device = ~0,
 417                                }, sizeof(struct nv_device_v0),
 418                                &drm->device);
 419         if (ret)
 420                 goto fail_device;
 421
 422         dev->irq_enabled = true;
 423
 424         /* workaround an odd issue on nvc1 by disabling the device's
 425          * nosnoop capability.  hopefully won't cause issues until a
 426          * better fix is found - assuming there is one...
 427          */
 428         if (drm->device.info.chipset == 0xc1)
 429                 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
 430
 431         nouveau_vga_init(drm);
 432
 433         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 434                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 435                                   0x1000, NULL, &drm->client.vm);
 436                 if (ret)
 437                         goto fail_device;
 438
 439                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
 440         }
 441
 442         ret = nouveau_ttm_init(drm);
 443         if (ret)
 444                 goto fail_ttm;
 445
 446         ret = nouveau_bios_init(dev);
 447         if (ret)
 448                 goto fail_bios;
 449
 450         ret = nouveau_display_create(dev);
 451         if (ret)
 452                 goto fail_dispctor;
 453
 454         if (dev->mode_config.num_crtc) {
 455                 ret = nouveau_display_init(dev);
 456                 if (ret)
 457                         goto fail_dispinit;
 458         }
 459
 460         nouveau_sysfs_init(dev);
 461         nouveau_hwmon_init(dev);
 462         nouveau_accel_init(drm);
 463         nouveau_fbcon_init(dev);
 464
 465         if (nouveau_runtime_pm != 0) {
 466                 pm_runtime_use_autosuspend(dev->dev);
 467                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
 468                 pm_runtime_set_active(dev->dev);
 469                 pm_runtime_allow(dev->dev);
 470                 pm_runtime_mark_last_busy(dev->dev);
 471                 pm_runtime_put(dev->dev);
 472         }
 473         return 0;
 474
 475 fail_dispinit:
 476         nouveau_display_destroy(dev);
 477 fail_dispctor:
 478         nouveau_bios_takedown(dev);
 479 fail_bios:
 480         nouveau_ttm_fini(drm);
 481 fail_ttm:
 482         nouveau_vga_fini(drm);
 483 fail_device:
 484         nvif_device_fini(&drm->device);
 485         nouveau_cli_destroy(&drm->client);
 486         return ret;
 487 }
 488
 489 static int
 490 nouveau_drm_unload(struct drm_device *dev)
 491 {
 492         struct nouveau_drm *drm = nouveau_drm(dev);
 493
 494         pm_runtime_get_sync(dev->dev);
 495         nouveau_fbcon_fini(dev);
 496         nouveau_accel_fini(drm);
 497         nouveau_hwmon_fini(dev);
 498         nouveau_sysfs_fini(dev);
 499
 500         if (dev->mode_config.num_crtc)
 501                 nouveau_display_fini(dev);
 502         nouveau_display_destroy(dev);
 503
 504         nouveau_bios_takedown(dev);
 505
 506         nouveau_ttm_fini(drm);
 507         nouveau_vga_fini(drm);
 508
 509         nvif_device_fini(&drm->device);
 510         if (drm->hdmi_device)
 511                 pci_dev_put(drm->hdmi_device);
 512         nouveau_cli_destroy(&drm->client);
 513         return 0;
 514 }
 515
 516 void
 517 nouveau_drm_device_remove(struct drm_device *dev)
 518 {
 519         struct nouveau_drm *drm = nouveau_drm(dev);
 520         struct nvkm_client *client;
 521         struct nvkm_device *device;
 522
 523         dev->irq_enabled = false;
 524         client = nvxx_client(&drm->client.base);
 525         device = nvkm_device_find(client->device);
 526         drm_put_dev(dev);
 527
 528         nvkm_device_del(&device);
 529 }
 530
 531 static void
 532 nouveau_drm_remove(struct pci_dev *pdev)
 533 {
 534         struct drm_device *dev = pci_get_drvdata(pdev);
 535
 536         nouveau_drm_device_remove(dev);
 537 }
 538
 539 static int
 540 nouveau_do_suspend(struct drm_device *dev, bool runtime)
 541 {
 542         struct nouveau_drm *drm = nouveau_drm(dev);
 543         struct nouveau_cli *cli;
 544         int ret;
 545
 546         if (dev->mode_config.num_crtc) {
 547                 NV_INFO(drm, "suspending console...\n");
 548                 nouveau_fbcon_set_suspend(dev, 1);
 549                 NV_INFO(drm, "suspending display...\n");
 550                 ret = nouveau_display_suspend(dev, runtime);
 551                 if (ret)
 552                         return ret;
 553         }
 554
 555         NV_INFO(drm, "evicting buffers...\n");
 556         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 557
 558         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
 559         if (drm->cechan) {
 560                 ret = nouveau_channel_idle(drm->cechan);
 561                 if (ret)
 562                         goto fail_display;
 563         }
 564
 565         if (drm->channel) {
 566                 ret = nouveau_channel_idle(drm->channel);
 567                 if (ret)
 568                         goto fail_display;
 569         }
 570
 571         NV_INFO(drm, "suspending client object trees...\n");
 572         if (drm->fence && nouveau_fence(drm)->suspend) {
 573                 if (!nouveau_fence(drm)->suspend(drm)) {
 574                         ret = -ENOMEM;
 575                         goto fail_display;
 576                 }
 577         }
 578
 579         list_for_each_entry(cli, &drm->clients, head) {
 580                 ret = nvif_client_suspend(&cli->base);
 581                 if (ret)
 582                         goto fail_client;
 583         }
 584
 585         NV_INFO(drm, "suspending kernel object tree...\n");
 586         ret = nvif_client_suspend(&drm->client.base);
 587         if (ret)
 588                 goto fail_client;
 589
 590         return 0;
 591
 592 fail_client:
 593         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
 594                 nvif_client_resume(&cli->base);
 595         }
 596
 597         if (drm->fence && nouveau_fence(drm)->resume)
 598                 nouveau_fence(drm)->resume(drm);
 599
 600 fail_display:
 601         if (dev->mode_config.num_crtc) {
 602                 NV_INFO(drm, "resuming display...\n");
 603                 nouveau_display_resume(dev, runtime);
 604         }
 605         return ret;
 606 }
 607
 608 static int
 609 nouveau_do_resume(struct drm_device *dev, bool runtime)
 610 {
 611         struct nouveau_drm *drm = nouveau_drm(dev);
 612         struct nouveau_cli *cli;
 613
 614         NV_INFO(drm, "resuming kernel object tree...\n");
 615         nvif_client_resume(&drm->client.base);
 616
 617         NV_INFO(drm, "resuming client object trees...\n");
 618         if (drm->fence && nouveau_fence(drm)->resume)
 619                 nouveau_fence(drm)->resume(drm);
 620
 621         list_for_each_entry(cli, &drm->clients, head) {
 622                 nvif_client_resume(&cli->base);
 623         }
 624
 625         nouveau_run_vbios_init(dev);
 626
 627         if (dev->mode_config.num_crtc) {
 628                 NV_INFO(drm, "resuming display...\n");
 629                 nouveau_display_resume(dev, runtime);
 630                 NV_INFO(drm, "resuming console...\n");
 631                 nouveau_fbcon_set_suspend(dev, 0);
 632         }
 633
 634         return 0;
 635 }
 636
 637 int
 638 nouveau_pmops_suspend(struct device *dev)
 639 {
 640         struct pci_dev *pdev = to_pci_dev(dev);
 641         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 642         int ret;
 643
 644         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 645             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 646                 return 0;
 647
 648         ret = nouveau_do_suspend(drm_dev, false);
 649         if (ret)
 650                 return ret;
 651
 652         pci_save_state(pdev);
 653         pci_disable_device(pdev);
 654         pci_set_power_state(pdev, PCI_D3hot);
 655         udelay(200);
 656         return 0;
 657 }
 658
 659 int
 660 nouveau_pmops_resume(struct device *dev)
 661 {
 662         struct pci_dev *pdev = to_pci_dev(dev);
 663         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 664         int ret;
 665
 666         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
 667             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
 668                 return 0;
 669
 670         pci_set_power_state(pdev, PCI_D0);
 671         pci_restore_state(pdev);
 672         ret = pci_enable_device(pdev);
 673         if (ret)
 674                 return ret;
 675         pci_set_master(pdev);
 676
 677         return nouveau_do_resume(drm_dev, false);
 678 }
 679
 680 static int
 681 nouveau_pmops_freeze(struct device *dev)
 682 {
 683         struct pci_dev *pdev = to_pci_dev(dev);
 684         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 685         return nouveau_do_suspend(drm_dev, false);
 686 }
 687
 688 static int
 689 nouveau_pmops_thaw(struct device *dev)
 690 {
 691         struct pci_dev *pdev = to_pci_dev(dev);
 692         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 693         return nouveau_do_resume(drm_dev, false);
 694 }
 695
 696 static int
 697 nouveau_pmops_runtime_suspend(struct device *dev)
 698 {
 699         struct pci_dev *pdev = to_pci_dev(dev);
 700         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 701         int ret;
 702
 703         if (nouveau_runtime_pm == 0) {
 704                 pm_runtime_forbid(dev);
 705                 return -EBUSY;
 706         }
 707
 708         /* are we optimus enabled? */
 709         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 710                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 711                 pm_runtime_forbid(dev);
 712                 return -EBUSY;
 713         }
 714
 715         drm_kms_helper_poll_disable(drm_dev);
 716         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
 717         nouveau_switcheroo_optimus_dsm();
 718         ret = nouveau_do_suspend(drm_dev, true);
 719         pci_save_state(pdev);
 720         pci_disable_device(pdev);
 721         pci_ignore_hotplug(pdev);
 722         pci_set_power_state(pdev, PCI_D3cold);
 723         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 724         return ret;
 725 }
 726
 727 static int
 728 nouveau_pmops_runtime_resume(struct device *dev)
 729 {
 730         struct pci_dev *pdev = to_pci_dev(dev);
 731         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 732         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
 733         int ret;
 734
 735         if (nouveau_runtime_pm == 0)
 736                 return -EINVAL;
 737
 738         pci_set_power_state(pdev, PCI_D0);
 739         pci_restore_state(pdev);
 740         ret = pci_enable_device(pdev);
 741         if (ret)
 742                 return ret;
 743         pci_set_master(pdev);
 744
 745         ret = nouveau_do_resume(drm_dev, true);
 746         drm_kms_helper_poll_enable(drm_dev);
 747         /* do magic */
 748         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 749         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
 750         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 751         return ret;
 752 }
 753
 754 static int
 755 nouveau_pmops_runtime_idle(struct device *dev)
 756 {
 757         struct pci_dev *pdev = to_pci_dev(dev);
 758         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 759         struct nouveau_drm *drm = nouveau_drm(drm_dev);
 760         struct drm_crtc *crtc;
 761
 762         if (nouveau_runtime_pm == 0) {
 763                 pm_runtime_forbid(dev);
 764                 return -EBUSY;
 765         }
 766
 767         /* are we optimus enabled? */
 768         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
 769                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
 770                 pm_runtime_forbid(dev);
 771                 return -EBUSY;
 772         }
 773
 774         /* if we have a hdmi audio device - make sure it has a driver loaded */
 775         if (drm->hdmi_device) {
 776                 if (!drm->hdmi_device->driver) {
 777                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
 778                         pm_runtime_mark_last_busy(dev);
 779                         return -EBUSY;
 780                 }
 781         }
 782
 783         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
 784                 if (crtc->enabled) {
 785                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
 786                         return -EBUSY;
 787                 }
 788         }
 789         pm_runtime_mark_last_busy(dev);
 790         pm_runtime_autosuspend(dev);
 791         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
 792         return 1;
 793 }
 794
 795 static int
 796 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 797 {
 798         struct nouveau_drm *drm = nouveau_drm(dev);
 799         struct nouveau_cli *cli;
 800         char name[32], tmpname[TASK_COMM_LEN];
 801         int ret;
 802
 803         /* need to bring up power immediately if opening device */
 804         ret = pm_runtime_get_sync(dev->dev);
 805         if (ret < 0 && ret != -EACCES)
 806                 return ret;
 807
 808         get_task_comm(tmpname, current);
 809         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 810
 811         ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
 812
 813         if (ret)
 814                 goto out_suspend;
 815
 816         cli->base.super = false;
 817
 818         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 819                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
 820                                   0x1000, NULL, &cli->vm);
 821                 if (ret) {
 822                         nouveau_cli_destroy(cli);
 823                         goto out_suspend;
 824                 }
 825
 826                 nvxx_client(&cli->base)->vm = cli->vm;
 827         }
 828
 829         fpriv->driver_priv = cli;
 830
 831         mutex_lock(&drm->client.mutex);
 832         list_add(&cli->head, &drm->clients);
 833         mutex_unlock(&drm->client.mutex);
 834
 835 out_suspend:
 836         pm_runtime_mark_last_busy(dev->dev);
 837         pm_runtime_put_autosuspend(dev->dev);
 838
 839         return ret;
 840 }
 841
 842 static void
 843 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
 844 {
 845         struct nouveau_cli *cli = nouveau_cli(fpriv);
 846         struct nouveau_drm *drm = nouveau_drm(dev);
 847
 848         pm_runtime_get_sync(dev->dev);
 849
 850         mutex_lock(&cli->mutex);
 851         if (cli->abi16)
 852                 nouveau_abi16_fini(cli->abi16);
 853         mutex_unlock(&cli->mutex);
 854
 855         mutex_lock(&drm->client.mutex);
 856         list_del(&cli->head);
 857         mutex_unlock(&drm->client.mutex);
 858
 859 }
 860
 861 static void
 862 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 863 {
 864         struct nouveau_cli *cli = nouveau_cli(fpriv);
 865         nouveau_cli_destroy(cli);
 866         pm_runtime_mark_last_busy(dev->dev);
 867         pm_runtime_put_autosuspend(dev->dev);
 868 }
 869
 870 static const struct drm_ioctl_desc
 871 nouveau_ioctls[] = {
 872         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
 873         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 874         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 875         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
 876         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 877         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
 878         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
 879         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
 880         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
 881         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
 882         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
 883         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
 884 };
 885
 886 long
 887 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 888 {
 889         struct drm_file *filp = file->private_data;
 890         struct drm_device *dev = filp->minor->dev;
 891         long ret;
 892
 893         ret = pm_runtime_get_sync(dev->dev);
 894         if (ret < 0 && ret != -EACCES)
 895                 return ret;
 896
 897         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
 898         case DRM_NOUVEAU_NVIF:
 899                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
 900                 break;
 901         default:
 902                 ret = drm_ioctl(file, cmd, arg);
 903                 break;
 904         }
 905
 906         pm_runtime_mark_last_busy(dev->dev);
 907         pm_runtime_put_autosuspend(dev->dev);
 908         return ret;
 909 }
 910
 911 static const struct file_operations
 912 nouveau_driver_fops = {
 913         .owner = THIS_MODULE,
 914         .open = drm_open,
 915         .release = drm_release,
 916         .unlocked_ioctl = nouveau_drm_ioctl,
 917         .mmap = nouveau_ttm_mmap,
 918         .poll = drm_poll,
 919         .read = drm_read,
 920 #if defined(CONFIG_COMPAT)
 921         .compat_ioctl = nouveau_compat_ioctl,
 922 #endif
 923         .llseek = noop_llseek,
 924 };
 925
 926 static struct drm_driver
 927 driver_stub = {
 928         .driver_features =
 929                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
 930                 DRIVER_KMS_LEGACY_CONTEXT,
 931
 932         .load = nouveau_drm_load,
 933         .unload = nouveau_drm_unload,
 934         .open = nouveau_drm_open,
 935         .preclose = nouveau_drm_preclose,
 936         .postclose = nouveau_drm_postclose,
 937         .lastclose = nouveau_vga_lastclose,
 938
 939 #if defined(CONFIG_DEBUG_FS)
 940         .debugfs_init = nouveau_debugfs_init,
 941         .debugfs_cleanup = nouveau_debugfs_takedown,
 942 #endif
 943
 944         .get_vblank_counter = drm_vblank_no_hw_counter,
 945         .enable_vblank = nouveau_display_vblank_enable,
 946         .disable_vblank = nouveau_display_vblank_disable,
 947         .get_scanout_position = nouveau_display_scanoutpos,
 948         .get_vblank_timestamp = nouveau_display_vblstamp,
 949
 950         .ioctls = nouveau_ioctls,
 951         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
 952         .fops = &nouveau_driver_fops,
 953
 954         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 955         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 956         .gem_prime_export = drm_gem_prime_export,
 957         .gem_prime_import = drm_gem_prime_import,
 958         .gem_prime_pin = nouveau_gem_prime_pin,
 959         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
 960         .gem_prime_unpin = nouveau_gem_prime_unpin,
 961         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
 962         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
 963         .gem_prime_vmap = nouveau_gem_prime_vmap,
 964         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
 965
 966         .gem_free_object = nouveau_gem_object_del,
 967         .gem_open_object = nouveau_gem_object_open,
 968         .gem_close_object = nouveau_gem_object_close,
 969
 970         .dumb_create = nouveau_display_dumb_create,
 971         .dumb_map_offset = nouveau_display_dumb_map_offset,
 972         .dumb_destroy = drm_gem_dumb_destroy,
 973
 974         .name = DRIVER_NAME,
 975         .desc = DRIVER_DESC,
 976 #ifdef GIT_REVISION
 977         .date = GIT_REVISION,
 978 #else
 979         .date = DRIVER_DATE,
 980 #endif
 981         .major = DRIVER_MAJOR,
 982         .minor = DRIVER_MINOR,
 983         .patchlevel = DRIVER_PATCHLEVEL,
 984 };
 985
 986 static struct pci_device_id
 987 nouveau_drm_pci_table[] = {
 988         {
 989                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
 990                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 991                 .class_mask  = 0xff << 16,
 992         },
 993         {
 994                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
 995                 .class = PCI_BASE_CLASS_DISPLAY << 16,
 996                 .class_mask  = 0xff << 16,
 997         },
 998         {}
 999 };
1000
1001 static void nouveau_display_options(void)
1002 {
1003         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1004
1005         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1006         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1007         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1008         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1009         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1010         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1011         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1012         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1013         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1014         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1015         DRM_DEBUG_DRIVER("... pstate       : %d\n", nouveau_pstate);
1016 }
1017
1018 static const struct dev_pm_ops nouveau_pm_ops = {
1019         .suspend = nouveau_pmops_suspend,
1020         .resume = nouveau_pmops_resume,
1021         .freeze = nouveau_pmops_freeze,
1022         .thaw = nouveau_pmops_thaw,
1023         .poweroff = nouveau_pmops_freeze,
1024         .restore = nouveau_pmops_resume,
1025         .runtime_suspend = nouveau_pmops_runtime_suspend,
1026         .runtime_resume = nouveau_pmops_runtime_resume,
1027         .runtime_idle = nouveau_pmops_runtime_idle,
1028 };
1029
1030 static struct pci_driver
1031 nouveau_drm_pci_driver = {
1032         .name = "nouveau",
1033         .id_table = nouveau_drm_pci_table,
1034         .probe = nouveau_drm_probe,
1035         .remove = nouveau_drm_remove,
1036         .driver.pm = &nouveau_pm_ops,
1037 };
1038
1039 struct drm_device *
1040 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1041                                struct platform_device *pdev,
1042                                struct nvkm_device **pdevice)
1043 {
1044         struct drm_device *drm;
1045         int err;
1046
1047         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1048                                     true, true, ~0ULL, pdevice);
1049         if (err)
1050                 goto err_free;
1051
1052         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1053         if (!drm) {
1054                 err = -ENOMEM;
1055                 goto err_free;
1056         }
1057
1058         err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
1059         if (err < 0)
1060                 goto err_free;
1061
1062         drm->platformdev = pdev;
1063         platform_set_drvdata(pdev, drm);
1064
1065         return drm;
1066
1067 err_free:
1068         nvkm_device_del(pdevice);
1069
1070         return ERR_PTR(err);
1071 }
1072
1073 static int __init
1074 nouveau_drm_init(void)
1075 {
1076         driver_pci = driver_stub;
1077         driver_pci.set_busid = drm_pci_set_busid;
1078         driver_platform = driver_stub;
1079         driver_platform.set_busid = drm_platform_set_busid;
1080
1081         nouveau_display_options();
1082
1083         if (nouveau_modeset == -1) {
1084 #ifdef CONFIG_VGA_CONSOLE
1085                 if (vgacon_text_force())
1086                         nouveau_modeset = 0;
1087 #endif
1088         }
1089
1090         if (!nouveau_modeset)
1091                 return 0;
1092
1093 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1094         platform_driver_register(&nouveau_platform_driver);
1095 #endif
1096
1097         nouveau_register_dsm_handler();
1098         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1099 }
1100
1101 static void __exit
1102 nouveau_drm_exit(void)
1103 {
1104         if (!nouveau_modeset)
1105                 return;
1106
1107         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1108         nouveau_unregister_dsm_handler();
1109
1110 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1111         platform_driver_unregister(&nouveau_platform_driver);
1112 #endif
1113 }
1114
1115 module_init(nouveau_drm_init);
1116 module_exit(nouveau_drm_exit);
1117
1118 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1119 MODULE_AUTHOR(DRIVER_AUTHOR);
1120 MODULE_DESCRIPTION(DRIVER_DESC);
1121 MODULE_LICENSE("GPL and additional rights");